Lenovo T400, Slow Login relate to Wireless Drivers

So we recently purchased our first batch of Lenovo T400's (2765-T6U) and we are experiencing the weirdest problem. I wiped out the laptop and installed Windows XP with SP3 and install all of the respective Lenovo Drivers and utilities like the Finger Scanner, Wireless Drivers ect and the laptop is joined to our domain. But once we installed the Wireless drivers the laptops responce to an initial log on request became painfully slow and it took 1-2 minutes from the time I pressed enter after typing in my password till it actually logged on. But as soon as I uninstall the wireless drivers, this issues goes away. The T400 comes with an Intel 5100 WiFi for the wireless and I have used the newest drivers from Lenovo and Intel and I have even tracked down the factory drivers and installed those as well, but the problem continues. And when the laptop is hung, there us next to no hard drive activity and then it all comes as a burst when it times out. I have a feeling that something is timing out which is causing this delay but I cannot pinpoint it.
cziggyAsked:
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cziggyConnect With a Mentor Author Commented:
For us we had a GPO setting that had disabled the Zero Wireless Config service and once we enabled it, the problem went away. Some kind of conflict between the Wireless Zero Config service and the Intel 5100 drivers. So we enabled the service and choose to disable the tool through the application.
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cziggyAuthor Commented:
I have now narrowed it down to the following Intel Chipset Support 7 Driver that is giving me the issue

http://www-307.ibm.com/pc/support/site.wss/document.do?sitestyle=lenovo&lndocid=MIGR-70315

I have looked high and low and can't find anything on this. I have gotten the newest version there is and it doesn't matter, the same problem continues.
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crazyj4488Commented:
I just started having this same issue on a Lenovo T60 with an Intel Wireless chipset.  Same environment in terms of Windows XP SP3, etc.  What wireless router are you connecting through?  I am using a DLink 624M...let's rule out the router if we can.
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cziggyAuthor Commented:
It isn't a router since I am hard wired into our network.
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crazyj4488Commented:
I see now that the your issue is for wired laptops and GOES AWAY when the wireless are uninstalled.  I was able to reproduce another issue with the Lenovo again today (while wired in).  I completely lost connection to one of my servers, but still had connectivity to others on the network (all Win 2003).  I discovered that EITHER disabling the wireless device OR disabling and reenabling the network card restored my access.  I checked my event log (Win XP) and noticed that the E1Express driver had issues when the laptop booted.  There were events logged for that network card driver starting well after I had already tried to log on to the network.  So, those were either from recovery or the driver was never loaded at boot.  A driver reinstall has not fixed this for me either.  Have you found any solutions to your specific problem?
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patlogiCommented:
Hi All,

We are also facing this very annoying problem.

Does someone have a hint or even a solution ?

Thanks,
Patrick
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ncsaitCommented:
The laptop I was working on would hang for at least a couple of minutes after the background picture showed up, beforethe icons and taskbar would appear.  I could turn off the workstation service or disable the wireless adaptor to get rid of the delay but neither was acceptable due to the loss of functionality.

There were 4 saved profiles in the Windows wireless that were set to connect automatically.  It turns out the delay was due only to our home wirless WEP profile.  I set that profile to only connect on demand.  Now at home we have to click connect to connect to the wireless network and it connects right away.  I hate that we have to click connect now, but it's better than the long delay at bootup.
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